HAN
type: MusicGroup
genre: j-rap
description: Han may refer to: People Ethnic groups Han Chinese, or Han people (), the largest ethnic group in China Han Taiwanese (), the ethnic group of Taiwanese people who are fully or partially of Han Chin
popularity: 11
followers: 452
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8dfca9a5c27d4c362444c37d63dee85ecd1b27ab9e1e5c537b4b423652ee7682
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953758
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953758
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b0f26fb7-8799-4ca1-a4f1-06a363eae53d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b0f26fb7-8799-4ca1-a4f1-06a363eae53d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b0f26fb7-8799-4ca1-a4f1-06a363eae53d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T07:48:25Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dfca9a5c27d4c362444c37d63dee85ecd1b27ab9e1e5c537b4b423652ee7682. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0f26fb7-8799-4ca1-a4f1-06a363eae53d.json and https://artists.proofprofile.net/proofs/artist/b0f26fb7-8799-4ca1-a4f1-06a363eae53d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T07:48:25Z
album: To Be
  type: MusicAlbum
  date published: 2020-06-12